EFFECT OF COATING TIME ON ELECTROCHEMICAL DEPOSITION OF MOLYBDENUM OXIDES THIN FILM ON THE SURFACE OF ANODIZED ALUMINUM PLATE FOR ULTRACAPACITOR ELECTRODE MATERIAL

Wandee Thamjaree () and Wim Nhuapeng ()
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Wandee Thamjaree: Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Wim Nhuapeng: Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

Surface Review and Letters (SRL), 2018, vol. 25, issue Supp01, 1-5

Abstract: In this work, effect of coating time on the structural, compositional and morphological properties of MoO3-coated Al2O3 plate for application as an electrode material for ultracapacitor was investigated. The 1cm × 1cm aluminum plate was anodized by an electrochemical plating technique at 12V for 20 and 30min, respectively. MoO3 film was then coated on anodized aluminum plate over a range of coating time (2–10min, in intervals of 4min) at an applied voltage of 6V with constant electric current of 1A. X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM) were employed in the characterization of the MoO3/Al2O3 plate obtained. The SEM results obtained indicated that the coating time significantly affected the roughness and the surface area of the samples. The EDX analysis revealed the chemical composition element of Mo, O and Al and the result from XPS confirmed the existence of MoO3.

Keywords: Molybdenum oxide; electrochemical plating; anodized aluminum; coating time (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X18400073

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